These running shorts are engineered for speed and built to breathe. Sweat-wicking Dri-FIT ADV technology helps you stay cool while four-way stretch fabric moves with you for distraction-free coverage. Stay Dry, Stay Cool:Nike Dri-FIT ADV levels up our sweat-wicking technology with advanced cooling and zones of breathability to help you stay dry and comfortable. A 5cm (approx.) inseam and perforations provide an airy feel.,Built to run:The four-way stretch woven fabric is built to flex in all directions. Stitching extends lower down the side seams compared with previous versions for extra coverage. The Flyvent Waistband combines elastic and mesh for a breathable, snug feel.,Innovative speed:AeroSwift is Nikes pinnacle racing gear. Its made for speed using the latest innovations, delivering optimal performance and distraction-free coverage. Streamlined designs are lightweight and sleek, helping you move freely as you finish strong. More benefits: The Swoosh logos have a non-reflective finish that doesnt catch flashes from photography during the race.The zip back pocket is big enough to fit most phones.